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130004242 = 265002121
BaseRepresentation
bin1111011111110…
…11010100010010
3100001121220021221
413233323110102
5231240113432
620522235254
73136006054
oct757732422
9301556257
10130004242
1167425125
1237655b2a
1320c1a6b4
14133a18d4
15b62eb97
hex7bfb512

130004242 has 4 divisors (see below), whose sum is σ = 195006366. Its totient is φ = 65002120.

The previous prime is 130004227. The next prime is 130004243. The reversal of 130004242 is 242400031.

130004242 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 75672601 + 54331641 = 8699^2 + 7371^2 .

It is a super-2 number, since 2×1300042422 = 33802205875989128, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (130004243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32501059 + ... + 32501062.

Almost surely, 2130004242 is an apocalyptic number.

130004242 is a deficient number, since it is larger than the sum of its proper divisors (65002124).

130004242 is an equidigital number, since it uses as much as digits as its factorization.

130004242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65002123.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 130004242 is about 11401.9402734798. The cubic root of 130004242 is about 506.5852118786.

Adding to 130004242 its reverse (242400031), we get a palindrome (372404273).

The spelling of 130004242 in words is "one hundred thirty million, four thousand, two hundred forty-two".

Divisors: 1 2 65002121 130004242